Abstract
Objective To investigate the clinicopathological features of patients with serous cystadenomas of the pancreas (SCAP).Methods The clinical and pathological features of 21 cases of SCAP were retrospectively analyzed.Results The mean age of the 21 cases was 61 years old,male:female ratio was 1∶ 1.33,18 (85.7%) patients presented with abdominal pain,bloating,abdominal mass,weight loss,and 3 (14.3%) patients were found during check-up.The tumors were located in pancreatic head in 9 patients,in pancreatic body and tail in 12 patients.The clinical manifestations were pancreatic cystic lesions.All patients underwent surgery.Histologically,the cyst wall was complete and lined with flat or cuboidal epithelium,cytoplasm was translucent,nucleus were round or oval with similar size,no significant nuclear atypia and mitotic activity was found.The pathologic diagnosis was micro-cyst type in 15 cases,single-cyst type in 6 cases.Immunohistochemistry method showed EMA,CK7,CK19 positive and PAS staining positive.The positive expression rate of Ki 67 was between 1% and 3%.After follow-up of 19 cases ranging from 3 months to 7 years,no recurrence and metastasis was detected.Conclusions SCAP is seen predominantly in elderly female patients with significant symptoms.A majority of tumors are located in the pancreatic body and tail.SCAP presents with characteristics of pancreatic ductal epithelial,and the prognosis is excellent. Key words: Pancreas; Cystadenomas, serous; Retrospective studies; Neoplasms, cystic
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